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-rw-r--r--net/hsr/hsr_device.c31
1 files changed, 14 insertions, 17 deletions
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index 9d71b66183..03a42de751 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -31,8 +31,8 @@ static bool is_slave_up(struct net_device *dev)
static void __hsr_set_operstate(struct net_device *dev, int transition)
{
write_lock(&dev_base_lock);
- if (dev->operstate != transition) {
- dev->operstate = transition;
+ if (READ_ONCE(dev->operstate) != transition) {
+ WRITE_ONCE(dev->operstate, transition);
write_unlock(&dev_base_lock);
netdev_state_change(dev);
} else {
@@ -71,39 +71,36 @@ static bool hsr_check_carrier(struct hsr_port *master)
return false;
}
-static void hsr_check_announce(struct net_device *hsr_dev,
- unsigned char old_operstate)
+static void hsr_check_announce(struct net_device *hsr_dev)
{
struct hsr_priv *hsr;
hsr = netdev_priv(hsr_dev);
-
- if (hsr_dev->operstate == IF_OPER_UP && old_operstate != IF_OPER_UP) {
- /* Went up */
- hsr->announce_count = 0;
- mod_timer(&hsr->announce_timer,
- jiffies + msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL));
+ if (netif_running(hsr_dev) && netif_oper_up(hsr_dev)) {
+ /* Enable announce timer and start sending supervisory frames */
+ if (!timer_pending(&hsr->announce_timer)) {
+ hsr->announce_count = 0;
+ mod_timer(&hsr->announce_timer, jiffies +
+ msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL));
+ }
+ } else {
+ /* Deactivate the announce timer */
+ timer_delete(&hsr->announce_timer);
}
-
- if (hsr_dev->operstate != IF_OPER_UP && old_operstate == IF_OPER_UP)
- /* Went down */
- del_timer(&hsr->announce_timer);
}
void hsr_check_carrier_and_operstate(struct hsr_priv *hsr)
{
struct hsr_port *master;
- unsigned char old_operstate;
bool has_carrier;
master = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
/* netif_stacked_transfer_operstate() cannot be used here since
* it doesn't set IF_OPER_LOWERLAYERDOWN (?)
*/
- old_operstate = master->dev->operstate;
has_carrier = hsr_check_carrier(master);
hsr_set_operstate(master, has_carrier);
- hsr_check_announce(master->dev, old_operstate);
+ hsr_check_announce(master->dev);
}
int hsr_get_max_mtu(struct hsr_priv *hsr)